Photo of a railroad pendulum car designed and built by Cortlandt Hill, who was the grandson of Great Northern Railway president James Hill. Two experimental coaches were built--pendulum cars eventually would up on the Burlington, Santa Fe and Great Northern, but not to the extent that coaches like the Vista Dome were.
A copyright search for renewals was done in both periodicals and artwork for the years 1964 and 1965. There were no listings for Wide World Photos or for the Los Angeles Times. There's no evidence of a continuing claim on this material.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
{{Information |Description=Photo of a railroad pendulum car designed and built by Cortlandt Hill, who was the grandson of Great Northern Railway president James Hill. Two experimental coaches were built--pendulum cars eventually would up on the Burling...